Oil gas burner



NOV; i7, .Q M KERRH-[ARD ET AL OIL GAS BURNER- Filed Sept. 17, 1928 ATTORNEYS Patented Nov. 17, 1931 Ninn "srarns PATENT .OFFICE GEORGE MILLER KERRIHARD AND MAXWELL LAEMMER KERRIHARD, lor, RED OAR,

IOWA, AssrGNoRs, BY DIRECT AND MnsNn AssrGNMENrs, 'ro KAYBAR BURNER COR- PORATION, OF CHECAGO, ILLINOIS f orL GAS BURNEE.

Our invention relates to improvements in oil gas burners, and it consists in the combinations, constructions, and arrangements herein described and claimed.`

An object of our invention is to provide an oil gas burner in which an eifective control of a blue flame device may be attained.y

A further obj ect is to providea device in which it is not necessary to continue burning the heating unitconstantly in order to provide an operative device. ,v j

A further object is to provide a gas oil burner in which the accumulation of carbon may be reduced to a minimum.

A further `object is to provide a gasoil burner inwhieh oil gas, and air are eficiently mixed prior to being burned.

A further object is to provide a gas `oil burner which may be effectively regulated by means of a suitable thermostat located in the living quarters. f y

A further object is to provide an oil gas burner in which an arrangement of baiiles is provided for permitting an eeient mixture and burning of the mixture.

Other objects and advantages will appear in the following specication, and the novel leatures or the .invention will be particularly n pointed out inthe appended claims.

Our invention is illustrated vin the accompanying drawings, forming part of this ap plication, in which n Y o Y Figure 1 isa side elevation, partly 1n section, of our device,

Figure 2 is a -sectional view'taken substantially along the line 2.-2 of Figure 1,

Figure 3 is a .detail view of a portion of our device,

Figure4 is a. detail of a portion of our device,V

Figure 5 is a sectional view taken along the line 5 5 of Figure 1, and l Figure 6 is a diagrammatic'view ,showing aninstallationembodying our invention.'

In carrying out our invention, we make use of a retort R comprising a series of compartments 1, 2, 3, and 4. The compartments 3 and 4 Amay be termed primaryand secondary generating compartments respectively. Theretort is anelongated construction substantial- Vway 427 forr lyy rectangular transversely, as shown in Fig-l ure 5. Acasing 5 is secured to one end o'f the. retort by means of suitable bolts 5. The interior of the casing 5 is in communication with theprimary compartment 8 byreason of a passageway 6.

f The retort is provided with openings 7 vupon f each ,sideas shown in Figure 1, whichare normally Aclosed bymeans of `suitable plates 8. The compartments land 2 are in` communication by reason of an opening 9. An opening 10 places the compartmenty 4in ycommunication with the compartment 1. One end of thesecondary compartment 4 is pro- 'vi ded with a curved surface V11 leading to the @Panino explained later.

The casing 5 is provided with a b aiile 12 disposed in alignment with the pasage'way 6.

A baille 13 is .disposed relatively near the p' baille 12, as shown in Figure 1. A lighting element y14 is mounted `upon the casing 5 and is in connnunication with the interior of the casing. A series of heating burnerslis `disposed upon the upper surface of the retort and in communication with the com.- partment 2, see Figure v5.- A shield 16 is ydisposed vtransversely ,upon the-burners 15 and encloses the lighting element 14. Theshield 16 is providedwith any suitable refractory ymaterial 17 at that .end rvassociated with the heating ,element 14.

One end of the retort isopen at 18 and is closed by kmeans of a plate 19.,y Feed tubes 20 and 21 are ,supported bythe plate 19 ,and

extend into the linterior oi' the compartments 4 and 3, respectively. Each of thesetubes is `formed upwardly at 22, as shown in Figure 1.H The retort is provided 4with kan extended portionQB having a partition 24 ,dist posed. in longitudinal*alignment with `the `wall 25 between the compartments Sand 4.

.0910. The purpose of this will be The partition'24 may bevtermed Va .wind split- Y kter. The partition 24provides passageways 26 and27, seeFigurejB. A suitablebutt'erf 'y ravens is 'disposed Within the Passage" yjegu'lating the air passing therethrough. i

In Figure .6 wehave shown a proposed installation. vThe extended portion -23 is connected with a suitable fan 29. The fan 29 is operatively connected with a motor M. The feed pipe 21 is connected with a constant level tank 30. The tank 30 is connected with a supply tank 31 by means of a pipe 32. A primary solenoid 33 is disposed upon the feed pipe 21 adjacent a valve 34. The feed pipe 2O is also connectedwith the tank 30.

llhe pipe 2O is provided with a meter valve 36 and a secondary solenoid 37. The solenoid 37 is operatively connected with a thermestat 38 by means of conductors 39 and 40.

The thermostat 38 is disposed within the stat 33 reaches a ycertain temperature, the

solenoid 37 willcut off the passage of fuel from the constant level supply to the retort.

A generating burner 43 is disposed underneath the retort, as shown in Figure 1. `The generating burner` is U-shaped, as shown in Figure 4, and is in communication with the interior'of the casing 5. The compartments 3 and 4 may be connected with the gas main in a building by means of tubes 44, as shown in Figure 1.

From the foregoing description of the various parts of the device, the operation thereof 'may be readily understood. T he secondary compartment 2 is associated with the series ofburners 15 for heating purposes. The primary compartment 3 provides means for continuing the generating burner 43 burning and also the lighting element 14 so'that the burners 15 may be lit any time the vsolenoid 37 is opened for passing fuel through the feed line 20. Vhen the motor M is started, the fan 29 will be actuated, which will cause airrto pass through the extended portion 23 and through the primary and secondary compartments 3 and 4.

As soon as the motor is started, the primary solenoid 33 is opened for permitting the passage of fuel oil from the constant level 30, and, assuming that the valve 34 is open, the fuel oil will ofcourse pass through 'the feed tube 21 andV be deposited Within the primary compartment 3.

We are assuming now that the generating burner 43 'is lit, whereupon the bottom of .theretort is heated sulliciently to convert the ,oil into gas. The gas thusgenerated will pass from the primary compartment V3 into the casing 5, bedeilected and mixed by reason of the baffles 12 and 13, some passing` downwardly and into the generating burner 43, and

the rest passingupwardly and through the lighting element 14. The lighting element 14 is of course constantly burning. The amount of fuel oil entering the prima-ry com* partment 3 is regulated so that just enough is generated into gas to provide sumcient heat underneath the retort for generating purposes and also for continuing the burning of the lighting element 14.

When it is desired to light the Yburners 15, the'fuel oil from the constant level is permitted to pass the valve 36 and will thereupon be yconveyed bythe feed tube 2O to the compartment 4. Vhen the oil from the tube drops upon the bottom of the retort, it will be generated into gas and will pass in the direction of the curved surface 11 upwardly through the opening 10 into the compartment 1, spread throughout the-entire compartment, be forced through the opening 9, spreading throughout the entire compartment 2, and then passing uniformly through each of the burners f 15. s soon as the gas passes through the burners 15, a certain amount is gathered underneath the shield 16. This gas will become ignited by reason of the lighting element 14 and the refractory material 17 which iskept at an intense heat, whereby each of the burners 15 will become ignited.

l/Vhen the temperature in the room in which the thermostat 38 is located reaches a prede- Y termined degree, the thermostat will close the circuit through the solenoid for closing the feed tube 20, thereby extinguishing the burners l5. The generating burner 43 continues to burn, and when the feed tube 2O is again opened, the burner 15 will be again lit as previously described. Due to the fact that our burners 15 may be entirely extinguished, and because of the fact that the generatin'gburner 43 can be easily set to burn at a specified flame independently of the burners 15 and is adapted to generate suflicient heat to thoroughly gasify the oil flowing into the primary and secondary compartments 3 and 4, it will be seen that we have provided a device in whichlthe accumulation of carbon is reduced to a minimum. Further than this, we have eliminated the necessity of continuing the burning of the heating burners 15. The fact that the'burners 15 may be entirely extinguished is an important feature, since in devices of'a similar type in which the burners 15 are regulated for burning more or less fuel for the purpose of regulating the temperaturewithin the room,'such burners are not efficient because of the fact that when the Weather Vis relatively warm, the continued burning of the burners 15 will result in teo much heat. i i

Should it at any timebe desired to gain accessto the interior of the primary and secondary compartments 3 and 4, this may be readily attained by removing` the plates 8. The amount of forced'air passing into the primary compartment 3 may be regulated by means of the butterfly valve 2S. In order to provide a convenient means for heating the retort sufficiently in the first instance, We have provided the tubes i4 for conveying gas into the retort.

It Will be observed that since the pipes 20 and 2l are Jformed as shown at 22, the discharge of the oil from these pipes Will stop immediately in the event thatl the power should be turned ottl and the ian stopped during the process of forcing air into the retort. It frequently happens that, Where there is a lack of air in the retort and flow of Voil continues therein, bacliire occurs. Our construction is such, however, that the oil is prevented from continuing to drip into the retort, thereby eliminating the danger of backiiring.

' We claim:

l. An oil gas burner comprising retort provided with a primary generating conrpartment and a secondary7 generating compartment. means for feeding fuel oil to said compartment, a generating burner, a lighting element, casing means associated with the retort and comunicating With said primary generating compartment, said casing being provided with haiile means for mixing and deflect-ing gases entering therein from said primary generating compartment, said casing being in communication with said lighting element and said generating burner, and a heating burner having communication with said secondary generating compartment.

2. An oil gas burner comprising a retort provided With a primary generating compartment and a. secondary generating compartment, means for feeding fuel oil to said compartments, a generatingvburner. alighting element, casing means associated with the retort and communicating with said pri-` mary generating compartment, said casing being provided with baffle means Jfor mixing and detlecting gases entering therein from said primary generating compartment, said casing being in communication With said lighting element and said generating burner, and a series of burners carried by the retort and communicating With said secondary generating compartment.

8. An oil gas burner comprising a retort provided with a primary generating comiartment and a secondary generating compartment, means foifeecling fuel oil to said compartments, a generating burner, a lighting element` casing means associated with the retort and communicating With said' primary generating compartment said casing being provided with baiile means for mixing` and deflecting gases entering therein from said primary generating compartment, p

said casing being in communication With said lighting element and said generating burner, a series of burners carried by the retort and communicating With said secondary generating compartment, and means for automaticallycutting off-thetlow of fuel oil to' said secondary generating compartment..

*4m/5in oil gasburner comprising a retort i tion with the retort and having communicay tionwith said primary generating compartment.y

5'. An oil gas Aburner comprising-a retort provided With-a primary generating compartmentand a secondary vgenerating compartmentand a plurality of compartments, onefof said plurality of compartments having communication With said secondary generating compartment, said plurality of compartments having communication With each other, Va series of burners carried by the retort and having communication with one of said pluralityv of compartments, "a generating burnner disposed in operative relation with the retort andrhaving communication With said primary generating compartment, and a lighting element having communication with said lprimary generating compartment.

6. lAn oil gas burner comprising a retort provided with a primary generating compartment and a secondary generating compartment and a plurality of compartments, one of said plurality of compartments having communication with said. secondary generating compartment, said plurality of compartments having communication With each other, a series of burners carried by the retort and having communication with one of said plurality of compartments, a generating burner disposed in operative relation With the retort and having communication With said lprimary generating compartment, a

lighting element having communication With said primary generating compartment, and shield means associated with said lighting element and said series of burners.V

7. An loil gas burner comprising a retort provided With a .primary generating compartment and a secondary generating com partment' and a plurality of compartments, one of said plurality of compartments having communication with said secondary generating compartment, said plurality of com"k partments having communication With each other, a series of burners carried by the retort and having communication with one of said plurality of compartments, a generating burner disposed in operative relation` with the retort and having communication with said primary generating compartment, a 130 lighting element having communication with said primary generating compartment, shield means associated With said lighting element and said series of burners, and means for forcing air through said primary generating compartment and said secondary generating compartment. l Y

8. An oil gas burner comprising a retort provided with a primary generating compartment and a secondary generating compartment and a plurality of compartments, one of said plurality` of compartments having communication with said secondary generating compartment, said plurality of come partments having communication With each other, ya series of burners carried by the retort land, having communication With one of said` plurality of compartments7 a generating burner disposed in operative relation With the retort and having communication With said primary generating compartment, a lighting element having communication With said primary generating compartment, shield means associated with said lighting element and said series of burners, means for forcing air through said primary generating compartment and said secondary generating compartment, and means for supplying oil to said last named compartments.

Signed at Red Oak, in the county of Montgomery and State of Iowa, this 11th day of September, A. D. 1928.

GEORGE MILLER KERRIHARD. MAXWELL LATIMER KERRIHARD. 

